diff options
| author | afzal mohammed <afzal.mohd.ma@gmail.com> | 2020-03-04 03:50:24 +0300 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2020-04-05 23:05:23 +0300 |
| commit | 997ba6573685451c37005a5b74a4baa3c16b5231 (patch) | |
| tree | 214fc87349ce5cbbc6531cd41dbcada7518d4d3f /arch | |
| parent | c48b07226bd41f4053aa2024c5e347183c04deb5 (diff) | |
| download | linux-997ba6573685451c37005a5b74a4baa3c16b5231.tar.xz | |
parisc: Replace setup_irq() by request_irq()
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/kernel/irq.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index e5fcfb70cc7c..e76c86619949 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -560,33 +560,23 @@ void do_cpu_irq_mask(struct pt_regs *regs) goto out; } -static struct irqaction timer_action = { - .handler = timer_interrupt, - .name = "timer", - .flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL, -}; - -#ifdef CONFIG_SMP -static struct irqaction ipi_action = { - .handler = ipi_interrupt, - .name = "IPI", - .flags = IRQF_PERCPU, -}; -#endif - static void claim_cpu_irqs(void) { + unsigned long flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL; int i; + for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) { irq_set_chip_and_handler(i, &cpu_interrupt_type, handle_percpu_irq); } irq_set_handler(TIMER_IRQ, handle_percpu_irq); - setup_irq(TIMER_IRQ, &timer_action); + if (request_irq(TIMER_IRQ, timer_interrupt, flags, "timer", NULL)) + pr_err("Failed to register timer interrupt\n"); #ifdef CONFIG_SMP irq_set_handler(IPI_IRQ, handle_percpu_irq); - setup_irq(IPI_IRQ, &ipi_action); + if (request_irq(IPI_IRQ, ipi_interrupt, IRQF_PERCPU, "IPI", NULL)) + pr_err("Failed to register IPI interrupt\n"); #endif } |